openharmony/third_party_rust_unicode-ident
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Improve table generator failure messages

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David Tolnay 2022-09-14 21:28:29 -07:00
parent d9fd2ffe77
commit 3f1a9570b5
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GPG Key ID: F9BA143B95FF6D82
1 changed files with 12 additions and 3 deletions
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15
generate/src/main.rs
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@ -54,7 +54,10 @@ fn main() {
*prev *prev
} else { } else {
dense.push(chunk); dense.push(chunk);
let new = u8::try_from(chunkmap.len()).unwrap(); let new = match u8::try_from(chunkmap.len()) {
Ok(byte) => byte,
Err(_) => panic!("exceeded 256 unique chunks"),
};
chunkmap.insert(chunk, new); chunkmap.insert(chunk, new);
new new
} }
@ -117,7 +120,10 @@ fn main() {
back.copy_from_slice(&chunk[CHUNK / 2..]); back.copy_from_slice(&chunk[CHUNK / 2..]);
dense_to_halfdense.insert( dense_to_halfdense.insert(
original_pos, original_pos,
u8::try_from(halfdense.len() / (CHUNK / 2)).unwrap(), match u8::try_from(halfdense.len() / (CHUNK / 2)) {
Ok(byte) => byte,
Err(_) => panic!("exceeded 256 half-chunks"),
},
); );
halfdense.extend_from_slice(&front); halfdense.extend_from_slice(&front);
halfdense.extend_from_slice(&back); halfdense.extend_from_slice(&back);
@ -134,7 +140,10 @@ fn main() {
} }
dense_to_halfdense.insert( dense_to_halfdense.insert(
original_pos, original_pos,
u8::try_from(halfdense.len() / (CHUNK / 2) - 1).unwrap(), match u8::try_from(halfdense.len() / (CHUNK / 2) - 1) {
Ok(byte) => byte,
Err(_) => panic!("exceeded 256 half-chunks"),
},
); );
halfdense.extend_from_slice(&next); halfdense.extend_from_slice(&next);
back = next; back = next;